Cap for receptacles.



PATENTBD JULY 1'7, 1906.

R. A HALL. GAP FOR REGEPTAGLES APPLICATION FILED OOT.28, 1904.

L H z I ITED STATES PATENT OFFICE.

ROBERT A. HALL, OF NEW YORK, N. Y., ASSIGNOR TO STANDARD STOPPERCOMPANY, OF-NEW YORK, N. Y., A CORPORATION F NEW JERSEY.

CAP FOR REcEPTAotEs.

ratenzedcury 17,1906; 7

Application filed October 28, 1904. Serial No. 230,320.

To all whom/it may concern.-

Be it known that 1, ROBERT A. HALL, a

' citizen of the United States, residing at New York, county of NewYork, and State of New York, have invented certain new and usefulImprovements in Caps for Receptacles, fully in which a cap having aerrcumferentiallycontinuous flange is attached to a receptacle bybending the flan e or-a certain portion thereof beneath a 100rig-shoulder on the receptacle.

lt 1s old in the art of capping receptacles to close a receptacle-by emloying a cap having a continuous flange an bendlng the flange intolocking contact with. the under side of a ,shoulder on the receptacle,the bending operation being effected either by a spinning or by apinchmg or compressing tool. In these constructions the shoulder of thereceptacleat or about the line of the greatest diameter of thelocking-shoulder serves as a fulcrum across which the flange is bent.Such bending, even Where it is progressive bendingof the character knownas spinning, sub ects the rece tacle to more or less strain, so thatthere is iability of brcakage,-especially if the caps be made ofcomparatively heavy metal. Furthermore, where the metal of thecontinuous flange bends across some part of the locking-shoulder as afulcrum it is very difficultto give the metal a permanent set of such acharacter as to cause the bent portion to lie snugly against the underside of the locking-shoulder and at the same time produce such ajointbetween the cap and the receptacle as will enable the cap to be readilyremoved when desired. If, for instance,'the

I metal be lightl bent or spun across the reatest circum 'erence of thelocking-shouler and against the under side thereof, the metal after thepressure of the spinning or bending tool is removed springsaway from theshoulder of the receptacle. While the amount of this spring is verysmall, it is still 'suflicient to prevent in many cases the formation ofa reliable seal, especiallywherethe contents of the receptacle is aliquid under pressure.

Caps have been made the continuous flanges of which have specialfeatures of construction-as, for instance, corrugations-the function ofwhich was to make the flange readily contraotible and to renderunnecessary in the formation of the seal to bring the flange in closecontact with the locking-f shoulder on the receptacle at all points, itbeing suflicient to form a seal with this class of caps if the shoulderof the receptacle is embedded in the crests of the corrugations. Thecorrugations whieh have been practically employeihowever, stiffen theflange of the capvertically and make it necessary to employ very heavypressure in sealing rece ta: cles, which where the receptacles are of gass is liable to produce considerable breakage. Furthermorathese capsrequire s ecial tools in their construction, and consi erable ex- 1penseis involved in their manufacture. It

as also been proposed to provide a cap having a continuous flange with acircumferential bead the urpose of which was to sustain the impact 0 theapplying-tool and reduce the liability of bre-a rage. This form of capis open to the objection that the bending of the flange into lockingposition must take lace substantially across the line of greatestdiameter of the locking-shoulder. The flange of the cap, however, is sostiffened by the bead formed therein that great pressure is necessary inorder to lock the cap in position, and difliculty is experienced inapplying this form of cap so as to make a hermetic seal. This form ofcap has not, therefore, gone into practical use.

It is one of the objects of this invention to produce a cappedreceptacle the cap element of which shall consist of a cap having acontinuous flange, the cap being a plied to a receptacle having alocklng-shoul er in suchsheli be simple in eomnmetien, z ef being elseAy mud:

l a l insftermeted. out.

Rei, ring to the Mme trees, ure 1 s r v.- seemone eievemen 0 2}: 2 msa131,!!-

estien to the z'ecepbede, and igs. 1'1} strsbe seeiien e1 elevation esped .c'eeeptee-lest embeds u nve ion.

We be used in. es s y be eol'st'rig umte the esp m 1 rem. form 0"; e

shown av eork disk 4 is shown i1; posit-i031 m' the interior of the cae.

The cap on: be new m em'meeialo W111i. reeep tee Whieh may lye n'lezieof any a Int-able vided. with a loeking-sheulder. in the par-'-tieulm'.eonst-rueiziori sei'eet-ed to iHusm'e't-e the invention abottle-top is show, 1 11oz being'n'la'rked' 5 and the loekiuyshmilder blere 011.6. In emflying the nae-p E0 reeeptecie lower edge of the flangeis bent sud, cap being ef this time held upon by any suitable means. ThejflW' Leg 0!? the esp-Henge 71.1 "e mi ed by s plying pressure by means01" e sl. ble toel t0 the edge of the flange. While tool may be emphlyedfor uh grooved Wheel m'eduees eetis 51C iery 1'1 However the p: sure isproduce 1 o, of such a ehmeeter as to cause th tum ll'lv'zfil'tl and tzravel tower the ,h. out 01 so that when the head 01* e I in'g 181635 '2y be tanned me flange and the bent J end hes out 0.

f n 2e sho'eider er she ree Heme mg or the cap sting ihe inner Sidfi ofthe eeT-b 1:

rt 3 :3 5m. 3) Hnet is, the side Wis-o.

i he 'ueeeint gnu-t 2--to beer eg wider slde of the belong-shoulder v plymg the cap the bendmg epezem j sac-p ed. seen or preeueehy es: soonsimuldel' of the .botfle, so that only a, mom 'etively smel portion of37m inner side of Iee'stpmt againstthe bettleshe'ifider, t Being theeoinstmeuien illustrated in bew ingfnsy be eontimied uni-ii the giv '1a. reverse bend, as illus- Mae seal produced by ea'rry, ferwerd illustrated in Fig. suefi found to the most effeetes the esjaryi'eg forwardof the bending more .m-ylieb! eompenseies for irregularities in. theheight the 1echug-shoulders, which 1 uimities particularly common is":Te-

formee of glass or vitreous meteion fer ordinary pu'rpeses can be mad-3v": light meteriel and can be Veryeeeewmieany produced, it being" onlynecessary te ens eirmJer disks from. sheets of material and subjectthemio e the ing operation in a die of very simple form. Furthermore,eom- 'pmetively small even of metal is requie l '30:: making the eeps,so that a eempemtwely large number of them een be obtained Tom e giverquantity of material. The fare he? Ire cheap to manufacture. Inesmueh,'urthermere, very little strain is set up on he reee ueeie in the theiefniiiby of breeicage reduced so min mu 1; end the eppiying meehenisminsy be ewzeeeinglysimple in its character and rapid in operation.

What e121. med is-- v if The combination with e reeepteeishem s, leek? zsizo alder located. exgtel'iorly with e moum thereof, of a, eep hevie1,211?! of ifis Henge eireumferelf' eontineeus sent inward, the innersurface of said bent part being in loeking eonxvii-h {be shoulder andthe bend in fihe age Whii'ih joins the bent and un beni pests theexme'me edge of the belt strikes,

'Wle esp employed in carrying out she in v set of e pphing e'eep,-

lying 012%, of eefl'beeib with the'shoulder subr I in position 1seieieeiw Ill with res eat to the mouth thereof, of a cap In testimonywhereof I have hereunto set having t e lower part of its flangecircinnfermy hand in the presence of two subscribing o entiallycontinuous and bent inward and upwitnesses. 1 ward, the inner surface ofsaid bent art being-in locking contact with the sho der and l ROBERT thebend in the flange which joins the bent Witnesses: and unbent partslying out of ,contact with i J. A. GRAVES,-

the shoulder, substantially as described. W. H. KENNEDY. 7

